核桃新品系BHT-1生物学性状研究初报

Preliminary study on biological characteristics of a new walnut strain BHT-1

核桃新品系BHT-1来源于中国农业科学院郑州果树研究所选育的短枝型核桃新品种中核短枝的芽变,与母树中核短枝品种相比,BHT-1在果枝率、枝平均坐果数、双果及三果率、平均坚果重、三径平均值、壳厚、出仁率、二年生株产量、五年生株产量方面均表现优异,也明显优于当前陕西省主栽核桃品种香玲,具有较好的推广前景。其抗病性弱的缺陷,可以通过杂交组合进行改良提高。

Walnut new strains(BHT-1)derived from‘Zhonghe Duanzhi’bud transformation,which was selected by Zhengzhou Fruit Research Institute,Chinese Academy of Agricultural Sciences.Compared with‘Zhonghe Duanzhi’,BHT-1 showed excellent performance in the fruit branch rate,average fruit-bearing branch number and double fruit and three fruit rate,average nut weight,average diameter,husk thickness,kernel ratio,plant yield and five-year plant yield,and was also significantly better than the current main walnut variety‘Xiangling’in Shaanxi province,and had a better promotion prospect.Its deficiency in disease resistance can be improved by hybrid combination.